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Q235B Steel ASTM A36 High Quality Carbon Steel Coil

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Material Q235B
Standard AISI ASTM JIS BS DIN GB
Technique Hot Rolled
Type Steel Coil
Thickness 2-100mm
Width 600-2000mm or as customer’s requirements
Sample Sample Freely
Packaging Standard seaworthy packaging or as required
Payment T/T ; L/C ;

Product Introduction

Q235B is a common carbon structural steel in China and a specific model of Q235 steel.

Its mechanical properties are regulated by the Chinese national standard GB/T 700-2006.  

Q235B steel has high tensile strength and good plasticity, and is suitable for the manufacture of various structural parts, such as building structures, bridges, ships, etc. It is widely used in the steel market and is one of the commonly used structural steel materials in China’s construction and manufacturing industries.

Q235B Steel has the following general characteristics:

  • Stable chemical composition: The chemical composition of Q235B steel conforms to national standards, ensuring stability and reliability.
  • High tensile strength: Q235B steel has a tensile strength ranging from 375 to 500 MPa, making it suitable for structures subjected to high loads.
  • Yield strength meets requirements: The yield strength of Q235B steel is 235 MPa, meeting the standard requirements for structural steel.
  • Moderate elongation: Q235B steel has an elongation of approximately 21%, indicating good plasticity and ease of processing.
  • Good weldability: Q235B steel exhibits excellent welding properties, suitable for various welding processes, meeting different structural welding requirements.
  • Wide application: Q235B steel is widely used in construction, manufacturing, and other industries, commonly used in the manufacture of various structural components such as building structures, bridges, ships, and machinery.

Q235B Steel Equivalent

Q235B steel equivalent to US ASTM, European EN (Germany DIN, Britain BS EN, France NF EN), Japan JIS, and ISO Standards.

China

Japan

USA

ISO

EN

GB

ISC

JIS

ASTM/AISI

ISO

EN

number

Q235B

U12355

SS400

A36
Gr.65[240]

E235B

S235JR

1.0038

(GB/T 700-2006)

U12355

(JIS G3101:2004)
(JIS G3106:2004)

(ASTM A573/A573M:2000)

(ISO 630:1995)

(EN 10025-2:2004)

1.0038

Comparison between Q235A and Q235B

Q235A and Q235B are commonly used structural steel materials. These two materials have different properties.

Comparison between Q235A and Q235B

Steel Grade

Steel Grade

Advantages

Disadvantages

Q235

Q235A

Stable ingredients: The chemical ingredients meet the standards and are stable and reliable.

High tensile strength: Relatively speaking, the tensile strength is slightly higher than Q235B

Slightly worse elongation: Relatively speaking, the elongation of Q235A is slightly lower than that of Q235B, and it is prone to cold brittleness.

Slightly lower hardness: Relatively speaking, the hardness of Q235A is slightly lower than Q235B, which may affect the use of some projects with higher requirements.

Q235

Q235B

Slightly worse elongation: Relatively speaking, the elongation of Q235A is slightly lower than that of Q235B, and it is prone to cold brittleness.

Slightly lower hardness: Relatively speaking, the hardness of Q235A is slightly lower than Q235B, which may affect the use of some projects with higher requirements.

Slightly lower composition: Relatively speaking, the carbon content of Q235B is slightly lower than Q235A, which may affect its performance in some special cases.
Slightly higher cost: Due to slightly better performance, the production cost of Q235B may be slightly higher than Q235A.

In summary, both Q235A and Q235B have their own advantages and disadvantages. The choice of which steel to use should be comprehensively considered based on the specific engineering requirements and use environment.

Applications

Q195 steel is known for its relatively low strength and good plasticity, making it suitable for various applications in different industries.

  • Construction: Q195 is commonly used for manufacturing various structural components, such as beams, columns, and structural profiles, due to its good formability and weldability.
  • General manufacturing: Q195 is used in the production of a wide range of manufactured goods, including machinery parts, pipes, and equipment, where high strength is not a primary requirement but formability and cost-effectiveness are important.
  • Automotive Industry: Q195 may be used in the automotive industry for non-critical components that do not require high strength, such as interior trim, brackets, and non-structural parts.
  • Furniture and Appliances: Q195 is used in the manufacturing of furniture, appliances, and household items where its formability and cost-effectiveness make it a suitable choice.
  • Packaging: Q195 can be used in the production of packaging materials, such as cans and containers, due to its formability and suitability for forming into various shapes.
  • Agricultural Equipment: Q195 may be used in the production of agricultural equipment and machinery components due to its formability and weldability.

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